Experimental server is down after last openSUSE Tumbleweed update. It appears a race condition in systemd is causing networking services to intermittently fail to start at boot time.
The issue is that systemd tries to start services in parallel, doing so in a non-deterministic fashion which makes it prone to these sorts of race conditions.
So I installed a new graphics card yesterday. Obviously the computer wouldn't boot afterwards (stuck during POST). So, after trying some stuff, which didn't work, I installed the previous card again. Obviously the machine still wouldn't boot. So I unplugged my tablet from USB and the machine booted. I installed the new card again and the machine still booted fine.
Good times
And, of course, now it also works fine with the tablet plugged in
@OliverSalzburg I can relate. Everytime my computer won't boot after a build or upgrade (hey it doesn't happen too often) it turns out to be something simple when I've taken out every component and put them back in 5 times over.
@JourneymanGeek what is your opinion on how well win10 would work on a smaller, or underpowered system, vrses say Win-XP which just generally had less Stuff?
as soon as i get done using all this obsolete software that doesnt work on windows 10, until it is upgraded LOL not gonna happen, i would like to go to windows 10, or be left in the dust in 2025
I also installed Win10 on my new work desktop yesterday. Even though I had another one of those nasty lockups where applications won't start or close anymore and it won't reboot :(
@JourneymanGeek did you change anything in the system , either tweaked, or via actual provided changes , to work with a weaker system? disableing stuff and all?
In the field of computer network administration, pcap (packet capture) consists of an application programming interface (API) for capturing network traffic. Unix-like systems implement pcap in the libpcap library; Windows uses a port of libpcap known as WinPcap.
Monitoring software may use libpcap and/or WinPcap to capture packets travelling over a network and, in newer versions, to transmit packets on a network at the link layer, as well as to get a list of network interfaces for possible use with libpcap or WinPcap.
The pcap API is written in C, so other languages such as Java, .NET languages...
> The peer wire protocol consists of an initial handshake. After that, peers communicate via an exchange of length-prefixed messages. The length-prefix is an integer as described above.
@Lembik Presumably the handshake is the very first message sent on the TCP stream.
"BitTorrent uses a "distributed sloppy hash table" (DHT) for storing peer contact information for "trackerless" torrents. In effect, each peer becomes a tracker. The protocol is based on Kademila [1] and is implemented over UDP."
> Peers supporting the DHT set the last bit of the 8-byte reserved flags exchanged in the BitTorrent protocol handshake.
> A "peer" is a client/server listening on a TCP port that implements the BitTorrent protocol. A "node" is a client/server listening on a UDP port implementing the distributed hash table protocol. The DHT is composed of nodes and stores the location of peers. BitTorrent clients include a DHT node, which is used to contact other nodes in the DHT to get the location of peers to download from using the BitTorrent protocol.
@Lembik Looks like there's also a UDP tracker protocol.
> In point of fact, BitTorrent is an ideal UDP application. Through a hashing algorithm integral to the BitTorrent service, the protocol has always been able to assure that it has reliably received all pieces of the information from all the users providing them.
The BitTorrent dissector is (fully functional, partially functional, not existing, ... whatever the current state is). The DHT extension has been supported since r39653. The uTP extension has been supported since r36716.
So you might be able to grab the uTP stream.
(a single UDP stream could include multiple higher-level uTP streams)
I need to make two hard drives unreadable. Unfortunately, I have some constraints which make this harder than usual (in particular, they rule out the answers to other questions):
I don’t have a computer to mount the drives and erase them (weird, right?)
I don’t have a strong magnet
I don’t have...
How do you destroy an old hard drive? To be clear, unlike questions Secure hard drive disposal: How to erase confidential information and How can I reliably erase all information on a hard drive? I do not want to erase the data and keep the hard drive, I want to get rid of the hard drive for good...
I have a broken HDD that contains sensitive data. Since no software can access the disk, I can't wipe it using any of the tools generally suggested.
Breaking the disk physically into very small pieces would probably suffice, but that would require some good tools to do. Just waving a magnet arou...
Based on the silvery-white metal antimony, with a pH of -31.3, it's 100,000 billion billion billion times more potent than stomach acid, and makes its rambunctious cousin sulfuric acid look as gentle as a vanilla milkshake with whipped cream and a cherry on top.
"You couldn't pick up a bottle of it because after it ate through the bottle, it would dissolve your hand," Sam Kean noted in his book The Disappearing Spoon. This begs a simple question: how is fluoroantimonic acid stored?
The answer, my friends, is the polymer that all fans of fried chicken know and love: polytetrafluoroethylene, more commonly known as Teflon. Thanks to its carbon-fluorine bonds -- the strongest single bond in organic chemistry -- Teflon is not only unreactive, hydrophobic, and "non-stick" (making it handy for frying food), but it's also immune to a host of corrosive superacids. Even its chemical structure resembles a fortified bulwark.
> But I have to admit, I'd never thought much about the next analog of hydrogen peroxide. Instead of having two oxygens in there, why not three: HOOOH? Indeed, why not? This is a general principle that can be extended to many other similar situations. Instead of being locked in a self-storage unit with two rabid wolverines, why not three? Instead of having two liters of pyridine poured down your trousers, why not three? And so on - it's a liberating thought. It's true that adding more oxygen-oxygen bonds to a compound will eventually liberate the tiles from your floor and your windows from …
:D
> These thoughts were prompted by a recent paper in JACS that describes a new route to "dihydrogen trioxide", which I suppose is a more systematic name than "hydrogen perperoxide", my own choice. Colloquially, I would imagine that the compound is known as "Oh, @#&!", substituted with the most heartfelt word available when you realize that you've actually made the stuff.
"hydrogen perperoxide": Colloquially, I would imagine that the compound is known as "Oh, @#&!", substituted with the most heartfelt word available when you realize that you've actually made the stuff.
